Apparatus for cutting and coiling webs



April 14 1970 v w. J. PIER APPARATUS Foa CUTTING AND coILING'wEBs 2Sheets-Sheet 1 Filed Feb. 29, 1968 /N VENTO/ Q 1, Z/Jz'Z/ze m er Mk@ M#@gf Ufff/5 April 14, 1970 w. J. PIER 3,506,211

APPARATUS FOR CUTTING AND COILING WEBS Filed Feb. A29. 1968 2Sheets-Sheet 2 United States Patent O 3,506,211 APPARATUS FR CUTTING ANDCILING WEBS Wilhelm J. Pier, Eddersheimerweg,

6238 Hattersheim am Main, Germany Filed Feb. 29, 1968, Ser. No. 709,455

Claims priority, application Germany, Mar. 1, 1967, P 41,516 Int. 'Cl.B65h 35/04, 75/02 U.S. Cl. 242--55 6 Claims ABSTRACT F THE DISCLOSURE Anapparatus for cutting and for coiling webs of paper, corrugatedcardboard and the like comprising a coiling bar in the form of a shaftwhich is actuated at one end and mounted at the other end in a removablebearing which makes use of a mechancal movable arrangement along thewinding bar which is operating to slide the reels down the winding barincluding a plate displaceable axially along the winding bar, the platebeing moved by an angular power transmission portion extending along anadjacent guide bar to effect displacement from the bearing and removalof the reels from the winding bar while being supported.

This invention relates to an apparatus for coiling webs., preferablywebs of paper, unilaterally covered cardboard or undulated paper or thelike into reels with a shaft forming a coiling bar which is driven atone end while the other end is maintained in a removable bearing.

Coiling means heretofore employed, particularly for cardboard, are sodesigned that the paper web extends from the supply bridge of theundulated (corrugated) cardboard machine via reversing or brakingrollers through a pair of cutting shafts to a coiling bar.

The coiling bar, comprised primarily of a quadrangular tube, issuspended in two bearings and connected by a jaw-like clutch to thedriven portion. After a coil has been divided into any desired number ofwebs or after in its entirety it has reached the desired diameter, themachine must be shut down, the cardboard Web is cut and glued. Thewinding bar is lifted with the reel from the bearings of the machine,requiring at least two persons, and placed on the oor or tape-likesupport. Large forces must be mustered in order to withdraw the windingbar from the reel and the bar is then inserted into the machine beforeanother winding operation may commence.

Such operations are subject to a number of disadvantages in that severaloperating personnel are needed to effect the exchange, shutdown of theoperations takes considerable time. This is in addition to thelimitations on the reeled length or the diameter of the rollers, becausein view of the operating personnel, their weights may not exceed 200kilograms. However, reels having weights up to 600 kilograms aredesired.

Another disadvantage of the prior art apparatus resides in the fact thatit requires considerable space and winding speed is somewhat irregularbecause the drive of the winding bar is by way of a friction roller. Thelarger the roll or reel, the higher the speed of the cardboard.

It is an object of this invention to design a machine which obviates allof these disadvantages and which executes the ejection of the completedreel from the winding bar automatically and in a very short period oftime and it is a related object to produce a machine of the typedescribed which is of compact design. t.

These and other objects and advantages of this invention willhereinafter appear and for purposes of illustration, but not oflimitation, an embodiment of the ice invention is shown in theaccompanying drawings in Which- FIG. l is a perspective view of theapparatus embodying the features of this invention; and

FIG. 2 is a perspective view showing the manner of operation of theremovable support bearing on one side of the shaft forming the windingbar and of the ejection means of the reels from the winding bar.

According to the present invention, a mechanically movable arrangementis provided along the winding bar in order to slide the reels down fromthe winding bar. Any number of reels can be -pushed down from the baradvantageously at any desired speed, requiring no operating help exceptfor central control.

Another advantage consists in the fact that the mobile arrangementcomprises a plate movable against the winding bar, said plate beingmoved via an angular power transmission portion extending along a guidebar, said plate being advantageously adjusted to the outer lateralsurfaces of the rolls and has a diameter corresponding to the average ormaximum diameter of the reels to be produced.

In a further desirable improvement of the invention, the drive of thepower transmission portion may be formed of an electrical motor and achain applied along the angular bar. In this way, a large force can betransmitted in avery simple manner to the plate which slides the reelsoff the bar.

A particular advantage, according to the invention, also resides in thefact that removable bearings at the one end of the propeller shaftforming an angle bar cornprises a rail mounted on rollers and/ orfriction bearings, so displaceable in its longitudinal direction thatthe outer end, when in extended position, firmly engages via a recessinto the connecting element of the shaft. The advantage of this rail forthe removable bearing consists in the fact that, as a result of thestable design of the rail, very large tensions which possibly occurduring winding can be actuated uniformly by both sides of the shaft.After removing the rail from one end of the shaft, which removal may beaccomplished automatically, the shaft is self-supporting. Consequently,it is possible to leave the machine during its operatiton partiallyunattended because, upon reaching the desired diameter of the rollers, ameter counter set to the desired length disconnects the Windingoperation. After separation and pasting of the web, preferably acardboard web, the rail forming the unilateral support bearing isremoved by operating a pressure key or push button and, after it hasreached its bottommost position, the ejection apparatus is automaticallystarted. This movement terminates when the reels have been pushed offthe winding bar and the ejection apparatus has returned to its startingposition.

Additional advantages of the winding machine are shown in individualembodiments, such as the use of two reversing rollersprecision-adjustable by belt brakes which take care of the hard or softwinding of the belt-like material. Likewise, adjustable lateral guidesmay be provided on the machine of this invention. The independent driveof two hard chrome plated knife shafts assures a neat cut, said shaftsbeing `provided with knife bodies or supports and circular kniveselastically fastened thereon. The knives can be replaced quickly withoutremoval of the shafts and adjustments can be effected simply byloosening a screw. Innitely variable constant angle speeds withelectronic control assure precise adjustment of the speed of the machineto be operated. An electric pre-select meter assures precise maintenanceof the desired reel length.

The machine according to the invention furthermore embodies theadvantage that, by welding, various parts of the machine can be adjustedto the most diverse operating widths. The commercial advantage of themachine of this invention consists in the one man operation of themachine, yet the performance is higher than that of any known apparatusof the prior art.

Referring now to the drawings, the tape-like material (undulatedcardboard) 1 moves from the supply bridge of the undulated cardboardmachine (not shown) via laterally spaced apart knife bodies 2 applied tohard chrome plated knife shafts 3 on the front side and appliedsymmetrically to the rear side of the paper web (not shown), and thenforwardly below the shaft after which it is rolled into reels 5. Thesereels are supported by a shaft forming a winding bar 6 of quadrangularcross-section. On the right side, the winding bar is, via bearing 7,xedly mounted on the machine housing, and on the left side, the windingbar is supported by a removable support bearing (rail) 8. As shown,while bar 6 extends over the width of the apparatus, it is generallypreferred that about three-fourths of the length of the shaft 6 have arectangular cross section. When the reels have reached the desireddiameter, the operation is automatically stopped by a meter counter (notshown) operating on the cardboard web. By operating the key 10, the rail8 which has been used as a supporting bearing of the winding bar (shownby broken lines in FIG. 2) and maintained via roller bearings 11 isintroduced rearwardly by conventional means not shown into the leg ofthe machine, so that the winding bar 6 becomes self-supporting. Theelectric motor, which is barely visible in FIG. 1 on the right sidebehind the machine, propels through a gear wheel a chain 14 whichextends over the entire length of the winding machine, a powertransmission portion 16 of angular design being fastened to the nipple15. The angular portion 16 which is supported by guide bar 4 along whichchain 14 extends pushes a plate 17, fastened to the power transmissionportion, to the left toward the open end of the winding bar 6. As shownin FIG. 2, the plate 17 pushes the reels 5 ahead of it, thereby ejectingone reel 5 after the other from the Winding bar. A central portion ofthe plate is shown in broken lines in FIG. 1. In the preferredembodiment, plate 17 has a diameter which is at least ve times thediameter of winding bar 6. As previously mentioned, the sliding(ejection) of the reels on the bar may be accomplished automatically ina few seconds. Within as short a time, the plate is moved back by theelectric motor 12 to its starting position, the rail 8 (supportingbearing), displaceable in its longitudinal axis, extends and engageswith its recess 18 around a ball bearing 19 located on a shaft on theleft side of the winding bar, so that a rigid connection exists betweenthe machine housing and the winding bar, so that the winding bar canrotate clockwise or counterclockwise, as shown in FIG. l, in thedirection of the arrow.

While a new winding operation is being carried out, the operator canmake the finished rolls ready for removal.

It will be apparent from the foregoing that I have provided a new andimproved cutting and winding machine for coiling Webs of paper,corrugated cardboard and the like material.

I claim:

1. In an apparatus for cutting and coiling webs of paper material intoreels, a coiling bar in the form of a shaft, means operatively engagingsaid shaft at one end thereof for actuation of the shaft in rotationalmovement, a movable bearing rotatably suporting the other end of saidshaft, said movable bearing comprising a rail and anti-friction memberssupporting said rail, means for radially displacing said rail relativeto said Shaft, plate means in a position to engage said reels for axialdisplacement of said reels on said shaft for removal over the bearingsupported end, and chain means in operative engagement with said platemeans for actuation of said plate means.

2. Apparatus as claimed in claim 1 in which said plate means is a platehaving a diameter which is at least ve times the diameter of the windingbar.

3. Apparatus as claimed in claim 1 in which said chain means comprises achain extending over the entire width of the apparatus, meansoperatively engaging the chain and said plate means, motor means, andmeans operatively engaging said motor means and said chain for actuationof the chain.

4. Apparatus as claimed in claim 1 in which the shaft extends over thewidth of the apparatus and is divided into portions including a windingbar portion of rectangular cross-section which extends overthree-fourths of the length of the shaft.

5. Apparatus as claimed in claim 2 in which the plate is adapted to movein contact with the winding bar and which includes a guide bar saidchain means engaging the plate for movement thereof along said guidebar.

6. Apparatus as claimed in claim 5 in which the chain means comprises apower source and a chain Operative along the angular guide bar.

References Cited UNITED STATES PATENTS 1,172,955 2/1916 Derringer 242-812,306,466 12/1942 Patterson 242-67.1 2,594,800 4/ 1952 Ranney 242-81 XR2,675,186 4/1954 Piper et al. 242-81 XR 2,836,372 5/1958 Roberts et al.242-55 2,877,960 3/1959 Schmidt et al 242-81 XR 2,971,719 2/1961Cochrane et al. 242-81 STANLEY N. GILREATH, Primary Examiner W. H.SCHROEDER, Assistant Examiner U.S. Cl. X.R. 242-562, 56.9, Sl

